Carotenoids and Ubiquinone in Aerobically Grown Cells of an Aerobic Photosynthetic Bacterium,ErythrobacterSpecies OCh 114
Year: 1983
Type: article
Abstract: Carotenoids and ubiquinone in aerobically grown cells of Erythrobacter species OCh1 14 were identified, which contained a considerable amount of bacteriochlorophyll a mediating light-driven electron flows.Spheroidenone was found to be the major component of carotenoids.Also small amounts of 2,2/-diketospirilloxanthin and OH-spheroidenone were found.Since symmetrical £carotene (together with phytoene and phytofluene) was accumulated in diphenylamine-inhibited cultures, these 3 keto carotenoids of the alternative spirilloxanthin-series are considered to be synthesized mainly via symmetrical £-carotene and not through asymmetrical C-carotene which is knownto be the intermediate in the biosynthesis of carotenoids in somespecies of non-sulfur purple bacteria.Onthe other hand, the major (or the sole) respiratory quinone of this strain was found to be ubiquinone-10. Shiba et al.X) isolated many strains of marine organotrophic bacteria containing Bchl a.2 ~3)
Authors: Keiji Harashima, Hirohisa Nakada
Institution: The University of Tokyo
Language: English
Subfield: Biotechnology
Domain: Life Sciences
Open Access status: bronze
Funder: University of Tokyo
OpenAlex ID: W2045801239